/Engine/Source/Runtime/SignalProcessing/Public/DSP/SpectrumAnalyzer.h
Return array of bands using spectrum band extractor.
void GetBands ( [ISpectrumBandExtractor](API\Runtime\SignalProcessing\DSP\ISpectrumBandExtractor) & InExtractor, [TArray](API\Runtime\Core\Containers\TArray)< float > & OutValues )